Home / 11,110.87-16,667.67-3,720.63

Finding the Fourth Proportional to 11,110.87, 16,667.67 and 3,720.63

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Solution

The fourth proportional to 11,110.87, 16,667.67 and 3,720.63 is: 5,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.87 : 16,667.67 = 3,720.63 : x
  2. Step 2: Convert to fraction form
    11,110.87/16,667.67 = 3,720.63/x
  3. Step 3: Cross multiply
    11,110.87x = 16,667.67 × 3,720.63
  4. Step 4: Simplify right side
    11,110.87x = 62,014,309.49
  5. Step 5: Solve for x
    x = 62,014,309.49/11,110.87
  6. Step 6: Final answer
    x = 5,581.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.